The MS 391 chain saw features a stratified charge engine that reduces fuel consumption and emissions, while providing significantly more power than others in its class. Combined with an exclusive long-life air filtration system, advanced anti-vibration system, toolless fuel and oil caps with retainers and a side-access chain tensioner, this is an environmentally conscious pick for mid-range users.
|Power output (kW/bhp)||3.3 / 4.5|
|Weight (kg / lbs) 1)||6.2 / 13.7|
|Featured price bar (in)||16|
Reduced-emission engine technology
2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20% lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.
STIHL anti-vibration system
Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.
Advanced combustion technology
Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.